メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.330133538714 43.0723085544092, 141.330625462939 43.0720980087481, 141.331206555498 43.0718407383835, 141.331519131026 43.0717023484292, 141.331776711142 43.0720279964767, 141.332052329594 43.0723764471757, 141.332207658521 43.0725490170277, 141.332472083802 43.0728875950519, 141.332645597881 43.0731082034395, 141.331535909507 43.0732509915295, 141.331620568147 43.0733829058895, 141.331640356484 43.0736060082178, 141.331421065376 43.073598549391, 141.331013019125 43.0736009656692, 141.330760860304 43.0735974614923, 141.330354977191 43.0735899760667, 141.32956127578 43.073579437699, 141.329595135439 43.072547699755, 141.329683986087 43.0725081162771, 141.330133538714 43.0723085544092)) ^^http://www.opengis.net/ont/geosparql#wktLiteral